2. Suppose that an adversary is trying to find a hash collision using a brute force attack. (a) What is the expected number of trials needed to produce a hash collision probability of 0.9 when MD5 is used? (20 pts)

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.

Choose the correct citation for the case which established the "minimum contacts" test for a court's jurisdiction in a case. select one: a. brown v. board of education of topeka, 347 u.s. 483 (1954). b. international shoe co. v. washington, 326 u.s. 310 (1945) c. haynes v. gore, 531 u.s. 98 (2000). d. international shoe co. v. washington, 14 u.s. code 336.

A. in packet tracer, only the server-pt device can act as a server. desktop or laptop pcs cannot act as a server. based on your studies so far, explain the client-server model.